How can I make a app for a phone?

Answer 1

Adding on to Ash Williams' answer, picking a language for app development depends on the platform you want the application to be released on. For IOS devices, XCode is a good choice for doing so, and it uses Swift as its main language for coding. For Android devices, Android Studio is a very popular choice right now, and it primarily uses Java and Kotlin as its main languages (along with XML and C++). I would suggest deciding where you want to go with application development and learn what you need for what you want to do.

Hope this helped! d:

Answer 2

If(Iphone){
Swift();
}
else if(Android){
Java();
}

Answer 3

If you want to code for both, you can either code 2 native apps or make a "hybrid app" using a library like phonegap. Either way you can reuse graphics, and most of the design and concepts on each version, hybrid apps mean you use one set of code for both devices but it won't be optimised, so won't be as fast to run but is faster to make the app.

Answer 4

adding to the other, you can use ReactNative to create hyper apps for iPhone and Android it's easy to learn